package com.mach.platform.api.util;

import com.mach.platform.utils.DateUtil;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 微信聊天记录时间格式显示
 */
public class TimeUtil {

    /**
     * String型时间戳格式化(跟微信聊天聊天界面的显示时间一样)
     *
     * @return
     */
    public static String getFormatTime(String time) throws ParseException {
        Date date = new Date();
        long longTime = DateUtil.getToLong(time);
        date.setTime(longTime);
        if (isThisYear(date)) { //今年
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm");
            if (isToday(date)) { //今天
                int minute = minutesAgo(longTime);
                if (minute < 60) { //1小时之内
                    if (minute <= 1) { //一分钟之内，显示刚刚
                        return "刚刚";
                    } else {
                        return minute + "分钟前";
                    }
                } else {
                    return simpleDateFormat.format(date);
                }
            } else {
                if (isYestYesterday(date)) { //昨天，显示昨天
                    return "昨天 " + simpleDateFormat.format(date);
                } else if (isThisWeek(date)) { //本周,显示周几
                    String weekday = null;
                    if (date.getDay() == 1) {
                        weekday = "周一";
                    }
                    if (date.getDay() == 2) {
                        weekday = "周二";
                    }
                    if (date.getDay() == 3) {
                        weekday = "周三";
                    }
                    if (date.getDay() == 4) {
                        weekday = "周四";
                    }
                    if (date.getDay() == 5) {
                        weekday = "周五";
                    }
                    if (date.getDay() == 6) {
                        weekday = "周六";
                    }
                    if (date.getDay() == 0) {
                        weekday = "周日";
                    }
                    return weekday + " " + simpleDateFormat.format(date);
                } else {
                    SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm");
                    return sdf.format(date);
                }
            }
        } else {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
            return sdf.format(date);
        }
    }


    private static int minutesAgo(long time) {
        return (int) ((System.currentTimeMillis() - time) / (60000));
    }

    private static boolean isToday(Date date) {
        Date now = new Date();
        return (date.getYear() == now.getYear()) && (date.getMonth() == now.getMonth()) && (date.getDate() == now.getDate());
    }

    private static boolean isYestYesterday(Date date) {
        Date now = new Date();
        return (date.getYear() == now.getYear()) && (date.getMonth() == now.getMonth()) && (date.getDate() + 1 == now.getDate());
    }

    private static boolean isThisWeek(Date date) {
        Date now = new Date();
        if ((date.getYear() == now.getYear()) && (date.getMonth() == now.getMonth())) {
            if (now.getDay() - date.getDay() < now.getDay() && now.getDate() - date.getDate() > 0 && now.getDate() - date.getDate() < 7) {
                return true;
            }
        }
        return false;
    }

    private static boolean isThisYear(Date date) {
        Date now = new Date();
        return date.getYear() == now.getYear();
    }


}
